I can recommend turning off the auto wipers if , like me, you leave them on and turn on the engine to heat up the car on a frosty morning. I started to scrape the ice off the windcreen on my Mums' 406 and when I scraped the top part (over the sensor) the wipers nearly had my fingers off (not to mention scaring the sh1t out of me)!!
you have been warned..
Pete